Github user avati commented on the pull request:
https://github.com/apache/spark/pull/1709#issuecomment-50850247
> These tests shouldn't be using scala NotNull, but catalyst's .notNull
>
<https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/dsl/package.scala#L199>
> .
>
Hmm, now that I look more carefully what you say makes sense. Trying to
figure out why notNull (catalyst's) was not found when compiling with Scala
2.11. The missing scala.NotNull in 2.11 was just a close coincidence I
think.
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